GeForce 8800 GTS (G80) 320MB vs GeForce GTX Titan

Intro

Compare those specifications to the GeForce GTX Titan, which makes use of a 28 nm design. nVidia has set the core frequency at 837 MHz. The GDDR5 RAM is set to run at a speed of 1502 MHz on this specific model. It features 2688 SPUs as well as 224 TAUs and 48 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 320MB		143 Watts
GeForce GTX Titan		250 Watts
	Difference: 107 Watts (75%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan is 355% faster than the GeForce 8800 GTS (G80) 320MB in general, because of its higher data rate. (explain)

GeForce GTX Titan		288384 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 225024 (355%)

Texel Rate

The GeForce GTX Titan is quite a bit (approximately 661%) more effective at AF than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX Titan		187488 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 162864 (661%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX Titan is superior to the GeForce 8800 GTS (G80) 320MB, by a large margin. (explain)

GeForce GTX Titan		40176 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 29916 (292%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.